
    <style type="text/css">
        *{ margin: 0; padding: 0; text-decoration: none;}
        body{
            overflow: hidden;

        }
        #container { width: 100%; height: 200px; overflow: hidden; position: relative;}
        #list { width: 600%; height: 200px; position: absolute; z-index: 1;}
        #list img { float: left;}
        #buttons { position: absolute; height: 10px; width: 100px; z-index: 2; bottom: 20px; left: 250px;}
        #buttons span { cursor: pointer; float: left; border: 1px solid #fff; width: 10px; height: 10px; border-radius: 50%; background: #333; margin-right: 5px;}
        #buttons .on {  background: orangered;}
        .arrow { cursor: pointer; display: none; line-height: 39px; text-align: center; font-size: 36px; font-weight: bold; width: 40px; height: 40px;  position: absolute; z-index: 2; top: 180px; background-color: RGBA(0,0,0,.3); color: #fff;}
        .arrow:hover { background-color: RGBA(0,0,0,.7);}
        #container:hover .arrow { display: block;}
        #prev { left: 20px;}
        #next { right: 20px;}
    </style>

<body scroll="no">
<div id="container" >
    <div id="list" style="left: -400px;">
        <img src="banner/4.jpg" alt="4"/>
        <img src="banner/1.jpg" alt="1"/>
        <img src="banner/2.jpg" alt="2"/>
        <img src="banner/3.jpg" alt="3"/>
        <img src="banner/4.jpg" alt="4"/>
        <img src="banner/1.jpg" alt="1"/>

    </div>
    <div id="buttons">
        <span index="1" class="on"></span>
        <span index="2"></span>
        <span index="3"></span>
        <span index="4"></span>

    </div>
    <a href="javascript:;" id="prev" class="arrow">&lt;</a>
    <a href="javascript:;" id="next" class="arrow">&gt;</a>
</div>
</body>
<script type="text/javascript">

    window.onload = function () {
//        var images = window.parent.getIMGs();
//        console.log(images)
//        document.getElementById('list').innerHTML=images;

        var container = document.getElementById('container');
        var list = document.getElementById('list');
        var buttons = document.getElementById('buttons').getElementsByTagName('span');
        var prev = document.getElementById('prev');
        var next = document.getElementById('next');
        var index = 1;
        var len = 4;
        var animated = false;
        var interval = 2000;
        var timer;

        function animate (offset) {
            if (offset == 0) {
                return;
            }
            animated = true;
            var time = 300;
            var inteval = 10;
            var speed = offset/(time/inteval);
            var left = parseInt(list.style.left) + offset;

            var go = function (){
                if ( (speed > 0 && parseInt(list.style.left) < left) || (speed < 0 && parseInt(list.style.left) > left)) {
                    list.style.left = parseInt(list.style.left) + speed + 'px';
                    setTimeout(go, inteval);
                }
                else {
                    list.style.left = left + 'px';
                    if(left>-200){
                        list.style.left = -400 * len + 'px';
                    }
                    if(left<(-400 * len)) {
                        list.style.left = '-400px';
                    }
                    animated = false;
                }
            }
            go();
        }

        function showButton() {
            for (var i = 0; i < buttons.length ; i++) {
                if( buttons[i].className == 'on'){
                    buttons[i].className = '';
                    break;
                }
            }
            buttons[index - 1].className = 'on';
        }

        function play() {
            timer = setTimeout(function () {
                next.onclick();
                play();
            }, interval);
        }
        function stop() {
            clearTimeout(timer);
        }

        next.onclick = function () {
            if (animated) {
                return;
            }
            if (index ==4) {
                index = 1;
            }
            else {
                index += 1;
            }
            animate(-400);
            showButton();
        }
        prev.onclick = function () {
            if (animated) {
                return;
            }
            if (index == 1) {
                index = 4;
            }
            else {
                index -= 1;
            }
            animate(400);
            showButton();
        }

        for (var i = 0; i < buttons.length; i++) {
            buttons[i].onclick = function () {
                if (animated) {
                    return;
                }
                if(this.className == 'on') {
                    return;
                }
                var myIndex = parseInt(this.getAttribute('index'));
                var offset = -400 * (myIndex - index);

                animate(offset);
                index = myIndex;
                showButton();
            }
        }

        container.onmouseover = stop;
        container.onmouseout = play;

        play();

    }
</script>
</html>